431
FXUS66 KHNX 270417
AFDHNX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HANFORD CA
917 PM PDT SUN JUL 26 2026
KEY MESSAGES
1. EXTREME HEAT WARNING CONTINUES FOR THE MOJAVE DESERT AND INDIAN
WELLS VALLEY THROUGH MONDAY EVENING. MAJOR HEATRISK EXPECTED WITH
AFTERNOON HIGHS 102 TO 110 DEGREES THROUGH MONDAY.
2. HIGH PRESSURE OVER THE REGION WILL MAINTAIN TEMPERATURES NEAR
SEASON AVERAGES FOR THE REMAINDER OF CENTRAL CALIFORNIA MONDAY
AND TUESDAY.
3. WARMING TREND BEGINS WEDNESDAY WITH MAJOR HEAT RISK BY FRIDAY
FOR THE MOJAVE SLOPES AND DESERT AND BY THE WEEKEND IN THE SAN
JOAQUIN VALLEY.
4. DRY CONDITIONS TO PREVAIL THROUGH THE WEEK.
DISCUSSION
TODAY'S HIGHS REACHED NEAR OR JUST BELOW THE CENTURY MARK ONCE
AGAIN IN THE SAN JOAQUIN VALLEY, WHILE HIGHS WERE GENERALLY 100
TO 105 DEGREES IN THE EASTERN KERN COUNTY PORTION OF THE MOJAVE
DESERT. GENERALLY NEAR AVERAGE TO SLIGHTLY ABOVE AVERAGE
TEMPERATURES TOOK PLACE. SIMILAR TEMPERATURES ARE IN STORE FOR
MONDAY AND TUESDAY, WHILE DRY CONDITIONS PREVAIL. A FEW MID-
LEVEL AND HIGH CLOUDS PERSIST OVER PORTIONS OF THE FORECAST
AREA; THESE EARLIER PRODUCED LIGHT ECHOES ON RADAR, BUT WITH NO
REPORTS OF PRECIPITATION. OTHERWISE, MAINLY CLEAR SKIES PREVAIL
ALONG WITH A PERSISTENT RIDGE OF HIGH PRESSURE CENTERED OVER THE
ROCKIES AND WESTERN GREAT PLAINS WITH SOUTHWEST FLOW OVER THE
GOLDEN STATE.
THE RIDGE IS FORECAST TO STRENGTHEN AND RETROGRADE A BIT. THIS
WILL PROVIDE A RISING TREND IN TEMPERATURES STARTING WEDNESDAY
WITH EVEN HOTTER TEMPERATURES FRIDAY INTO NEXT WEEKEND. MANY
AREAS COULD SEE MAJOR HEATRISK IN THE CENTRAL VALLEY AND ONCE
AGAIN IN THE KERN COUNTY DESERT FRIDAY INTO NEXT WEEKEND. THE
PROBABILITY OF A MAXIMUM TEMPERATURE OF AT LEAST 105 DEGREES IS
NOW AT 65-75 PERCENT FOR THE SAN JOAQUIN VALLEY, WHILE THE
CHANCES FOR 110 DEGREES IN THE MOJAVE DESERT ARE AT 80-90
PERCENT. UNFORTUNATELY, OVERNIGHT LOWS WILL BE VERY WARM IN
THE DESERT AND LARGER CITIES OF THE SJ VALLEY (MAINLY IN THE
70S, EXCEPT FOR LOWER 80S TOWARDS THE INDIAN WELLS VALLEY IN
NORTHEASTERN KERN COUNTY). DRY CONDITIONS WILL REMAIN UNTIL NEXT
WEEKEND. LOWER DAYTIME HUMIDITY WILL ALSO ACCOMPANY THE HOTTER
TEMPERATURES WITH MINIMUM VALUES RANGING FROM 5 TO 10 PERCENT IN
THE DESERT TO 10-20 PERCENT IN MOST OTHER LOCATIONS. MODERATE
TO POOR OVERNIGHT HUMIDITY RECOVERIES WILL ALSO OCCUR, INCLUDING
IN THE HIGHER TERRAIN AND DESERT.
AVIATION
VFR CONDITIONS WILL PREVAIL FOR THE NEXT 24 HOURS.
AIR QUALITY ISSUES
NONE.
CERTAINTY
THE LEVEL OF CERTAINTY FOR DAYS 1 AND 2 IS HIGH.
THE LEVEL OF CERTAINTY FOR DAYS 3 THROUGH 7 IS MEDIUM.
CERTAINTY LEVELS INCLUDE LOW...MEDIUM...AND HIGH. PLEASE VISIT
WWW.WEATHER.GOV/HNX/CERTAINTY.HTML FOR ADDITIONAL INFORMATION
AND/OR TO PROVIDE FEEDBACK.
HNX WATCHES/WARNINGS/ADVISORIES
EXTREME HEAT WARNING UNTIL 9 PM PDT MONDAY FOR CAZ337-339.
BSO
WEATHER.GOV/HANFORD
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